Solar aircraft set for touchdown

Several Chinese companies are in discussions on cooperation

The Solar Impulse Second, the world's largest solar-powered plane, will make two stopovers in China during a round-the-world flight in 2015, its builders said on Monday.

The second-generation model can fly day-and-night without fuel for five consecutive days and will stop in Nanjing, capital of Jiangsu province, and Chongqing municipality.